20809866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1453}}^1$

素因数の和:1507

約数の個数: 64

約数和(自身を含む): 53600256

約数和(自身を除く): 32790390

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 31, 33, 42, 62, 66, 77, 93, 154, 186, 217, 231, 341, 434, 462, 651, 682, 1023, 1302, 1453, 2046, 2387, 2906, 4359, 4774, 7161, 8718, 10171, 14322, 15983, 20342, 30513, 31966, 45043, 47949, 61026, 90086, 95898, 111881, 135129, 223762, 270258, 315301, 335643, 495473, 630602, 671286, 945903, 990946, 1486419, 1891806, 2972838, 3468311, 6936622, 10404933, 20809866]

約数ペア:

[(1, 20809866), (2, 10404933), (3, 6936622), (6, 3468311), (7, 2972838), (11, 1891806), (14, 1486419), (21, 990946), (22, 945903), (31, 671286), (33, 630602), (42, 495473), (62, 335643), (66, 315301), (77, 270258), (93, 223762), (154, 135129), (186, 111881), (217, 95898), (231, 90086), (341, 61026), (434, 47949), (462, 45043), (651, 31966), (682, 30513), (1023, 20342), (1302, 15983), (1453, 14322), (2046, 10171), (2387, 8718), (2906, 7161), (4359, 4774)]